IMAGE: Spain's Rafael Nadal is pumped after his win against Argentina's Juan Martin del Potro in the US Open semi-final at Flushing Meadows at the US Open on Friday. Photograph: Mike Segar/Reuters......

IMAGE: Rafael Nadal celebrates his victory against Juan Martin del Potro. Photograph: Mike Segar/Reuters Rafael Nadal was at his awe-inspiring best as he recovered from a first set wobble to crush......

World No. 1 Rafael Nadal and 24th seed Argentine Juan Martin del Potro are expected to produce some spectacular fireworks when the two players clash in the semi-finals of the US Open in New York on......